Going back to the idea of archiving images and not allowing launch of new VMs and hiding archived images by default in Horizon/CLI (maybe still can list/show if requested, possibly admin function only). Would it make sense to propose this as a blueprint for the next release?
Best regards, Igor On Thu, Feb 5, 2015 at 5:34 AM, Tim Bell <[email protected]> wrote: > > -----Original Message----- > > From: George Shuklin [mailto:[email protected]] > > Sent: 05 February 2015 14:10 > > To: [email protected] > > Subject: [Openstack-operators] How to handle updates of public images? > > > > Hello everyone. > > > > We are updating our public images regularly (to provide them to > customers in > > up-to-date state). But there is a problem: If some instance starts from > image it > > becomes 'used'. That means: > > * That image is used as _base for nova > > * If instance is reverted this image is used to recreate instance's disk > > * If instance is rescued this image is used as rescue base > > * It is redownloaded during resize/migration (on a new compute node) > > > > One more (our specific): > > We're using raw disks with _base on slow SATA drives (in comparison to > fast SSD > > for disks), and if that SATA fails, we replace it (and nova redownloads > stuff in > > _base). > > > > If image is deleted, it causes problems with nova (nova can't download > _base). > > > > The second part of the problem: glance disallows to update image (upload > new > > image with same ID), so we're forced to upload updated image with new ID > and > > to remove the old one. This causes problems described above. > > And if tenant boots from own snapshot and removes snapshot without > removing > > instance, it causes same problem even without our activity. > > > > How do you handle public image updates in your case? > > > > We have a similar problem. For the Horizon based end users, we've defined > a panel using image meta data. Details are at > http://openstack-in-production.blogspot.ch/2015/02/choosing-right-image.html > . > > For the CLI users, we propose to use the sort options from Glance to find > the latest image of a particular OS. > > It would be good if there was a way of marking an image as hidden so that > it can still be used for snapshots/migration but would not be shown in > image list operations. > > > Thanks! > > > > _______________________________________________ > > OpenStack-operators mailing list > > [email protected] > > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators > > _______________________________________________ > OpenStack-operators mailing list > [email protected] > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators > -- Best regards, Igor
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